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The OD shares it=92s oil with the transmission. I=92d really worry about =
transmission life with engine oil as it=92s lubricant. Engine oil does not=
have the shear stability that gear oils do.
One of the worst features of the classic Mini is the fact that it shares it=
=92s engine oil with the gearbox.
Terry Stetler
Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=3D550986> for Window=
s 10
________________________________
From: Fot <fot-bounces@autox.team.net> on behalf of van.mulders.marcel--- v=
ia Fot <fot@autox.team.net>
Sent: Sunday, December 16, 2018 11:08:41 AM
To: fot
Subject: [Fot] bike engine oil for overdrive gearbox?
Like most TR racers I believe that an overdrive gearbox is worth some lapti=
me on most racetracks. But there are some drawbacks :9.5kgs weight penalty =
and the gap between 4th gear and 4th overdrive gear is too big. There is al=
so a considerable amount of power loss when the overdrive is engaged becaus=
e of the friction in the overdrive gears : but I think that in general mode=
rn engine oil can reduce the friction in the overdrive, compared to GL-4 ge=
ar oil, because it has much better friction modifiers. But are these fricti=
on modifiers compatible with the clutch in the overdrive?? Classic Mini's a=
nd most bikes have 1 oil pan for both engine and gearbox : what about using=
a modern bike oil or a modern (synthetic) classic mini oil in an overdrive=
gearbox to reduce the friction in the overdrive and gain some acceleration=
when 4th overdrive gear is engaged?
Marcel
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<p class=3D"MsoNormal">The OD shares it=92s oil with the transmission. =
; I=92d really worry about transmission life with engine oil as it=92=
s lubricant. Engine oil does not have the shear stability that gear o=
ils do.</p>
<p class=3D"MsoNormal">One of the worst features of the classic Mini is the=
fact that it shares it=92s engine oil with the gearbox.</p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">Terry Stetler</p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">Sent from <a href=3D"https://go.microsoft.com/fwlink=
/?LinkId=3D550986">
Mail</a> for Windows 10</p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
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<div id=3D"divRplyFwdMsg" dir=3D"ltr"><font face=3D"Calibri, sans-serif" st=
yle=3D"font-size:11pt" color=3D"#000000"><b>From:</b> Fot <fot-bounces@a=
utox.team.net> on behalf of van.mulders.marcel--- via Fot <fot@autox.=
team.net><br>
<b>Sent:</b> Sunday, December 16, 2018 11:08:41 AM<br>
<b>To:</b> fot<br>
<b>Subject:</b> [Fot] bike engine oil for overdrive gearbox?</font>
<div> </div>
</div>
<div>
<div style=3D"font-family: Verdana, Arial, Helvetica, sans-serif; font-size=
: 10pt; color: #000000">
<div>Like most TR racers I believe that an overdrive gearbox is worth some =
laptime on most racetracks. But there are some drawbacks :9.5kgs weight pen=
alty and the gap between 4th gear and 4th overdrive gear is too big. There =
is also a considerable amount of
power loss when the overdrive is engaged because of the friction in the ov=
erdrive gears : but I think that in general modern engine oil can reduce th=
e friction in the overdrive, compared to GL-4 gear oil, because it has much=
better friction modifiers. But
are these friction modifiers compatible with the clutch in the overdrive??=
Classic Mini's and most bikes have 1 oil pan for both engine and gearbox :=
what about using a modern bike oil or a modern (synthetic) classic mini oi=
l in an overdrive gearbox to reduce
the friction in the overdrive and gain some acceleration when 4th overdriv=
e gear is engaged?</div>
<div>Marcel</div>
</div>
</div>
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_______________________________________________
fot@autox.team.net
http://www.fot-racing.com
Archive: http://www.team.net/pipermail/fot
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